Benjamin gabvey



UNITED STA ES PATENT OFFICEQ jBnN MrN eARVEY;'oF NEW roam-IN. Y.

lMP ovIEMEnT- IN-THE MANUFACTURE oF'BRE'A-ojgw Specification forming part of Letters Patent No. 29,h5,dated .July 17,

To all whom it may concern-1 a v Be'it known that I, BENJAMIN GARVEY, of the city,'.count-y, and State of New York, have invented a new and useful Method of-Making -;B'read, (Jake, Confectionery, 820.; and 1 do hereby declare the following to he a full, clear, and exact description of the same.

x The mantle of inylnvention consists in removing the atmospheric pressure, when the materials have been mixed, to such a degree that the air difl'used'through the mass shall,

in virtueof the elastic forceinherent in it, ex.-

andand produce the requisite raising or h gh ti use carbonic-acid gas through the mass. Hay ing prepared the doogh, paste, or bat'ter,' &c., viii'q-jthe. manner described, and having divided thjsameinto suitable portions and molded thesegi'nto loaves, cakes, 82s., I'putthem, one, or several 'atthe same time, into" an air-tight vessel or into anair-tight .Oven, from which I then exhaust the ail; byanyot' the usual means employed for thatcpurpose-, s'o that theair'diffused throughout the mass expands and raises orlightens. thev hread, &c,., either before the latter is put to bake or during the p'rocess of baking.

To produce hard or dense hread'I mix the materials in an exhausted vessel and do the baking where the'b'read. has the ilull atlnos phereic pressure upon'it.

I do not claim the einployment of carbonic acid or any gas other than atmosphericair, by compression or otherwise, to aerateor raise bread; but

What I claim as my invention, and desire to. v

secure by LettersPatent, is;z'i's't'ollows:- c

1. The process hereinjdescrihedfof employ 'iug atmospheric air by exhaustion to produce lightness in bread, c'a'ke,- onfectionery, &c.,-

without theaid of fermer ts, chemicals, or drugs ofany-kind.

- 2. The same processto inshre the raising r pf' bread,- &c., under all circumstances \vhemier- -.ment :sor chemicalsareemployed. I

I ENJKM N G RVEY.1 pl. s. Witness es! ,WnaH; VAN Vooanis,

eema r 

